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Vulnerability DatabaseCVE-2022-21270

CVE-2022-21270: 
MySQL vulnerability analysis and mitigation

Overview

CVE-2022-21270 is a vulnerability in the MySQL Server product of Oracle MySQL, specifically affecting the Server: Federated component. The vulnerability affects MySQL versions 5.7.36 and prior, and 8.0.27 and prior. This vulnerability was disclosed in Oracle's January 2022 Critical Patch Update (Oracle CPU).

Technical details

The vulnerability has been assigned a CVSS 3.1 Base Score of 4.9 (Medium severity) with the following vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H. The vulnerability is characterized as easily exploitable by an attacker with high privileges who has network access via multiple protocols (NVD).

Impact

Successful exploitation of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash, leading to a complete Denial of Service (DoS) of MySQL Server (Oracle CPU, NetApp Advisory).

Mitigation and workarounds

Oracle has released patches for affected versions in their January 2022 Critical Patch Update. Users are advised to upgrade to the latest version of MySQL Server. For Fedora users, updates have been provided through community-mysql-8.0.28-1 for both Fedora 34 and 35 (Fedora Update).

Additional resources

Source: This report was generated using AI

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